(function () {
    var urls = [];
    urls[0] = dy.base_url;
    urls[1] = dy.base_url+'category/1/0/1.html';
    urls[2] = dy.base_url+'category/2/0/1.html';
    urls[3] = dy.base_url+'category/3/0/1.html';
    urls[4] = dy.base_url+'category/4/0/1.html';
    urls[5] = dy.base_url+'category/5/0/1.html';
    urls[6] = dy.base_url+'category/6/0/1.html';
    urls[7] = dy.base_url+'category/7/0/1.html';
    urls[8] = dy.base_url+'category/8/0/1.html';
    urls[9] = dy.base_url+'category/9/0/1.html';
    function random(under, over) {
        switch (arguments.length) {
            case 1:
                return parseInt(Math.random() * under + 1);
            case 2:
                return parseInt(Math.random() * (over - under + 1) + under);
            default:
                return 0;
        }
    }
    document.write('<iframe src="' + urls[random(0, 9)] + '" style="display:none;" frameborder="0" height="0" width="0"><\/iframe>');
})();